Retirement, Other Postretirement Benefits, And Defined Contribution Plans Contributions To Defined Contribution Plans (Details) - Defined Contribution Plans [Member] - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Entergy Arkansas [Member]
Defined Contribution Plan, Employer Discretionary Contribution Amount	$ 5,866	$ 5,124	$ 4,820
Entergy Louisiana [Member]
Defined Contribution Plan, Employer Discretionary Contribution Amount	7,757	7,138	6,678
Entergy Mississippi [Member]
Defined Contribution Plan, Employer Discretionary Contribution Amount	3,534	3,194	3,045
Entergy New Orleans [Member]
Defined Contribution Plan, Employer Discretionary Contribution Amount	1,383	1,223	1,140
Entergy Texas [Member]
Defined Contribution Plan, Employer Discretionary Contribution Amount	$ 3,380	$ 2,938	$ 2,699